Cisco Systems 3560X Manual De Usuario
39-35
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Chapter 39 Configuring QoS
Configuring Standard QoS
Default Egress Queue Configuration
ports are mapped to queue-set 1. The port bandwidth limit is set to 100 percent and rate unlimited.
shows the default CoS output queue threshold map when QoS is enabled.
shows the default DSCP output queue threshold map when QoS is enabled.
Table 39-9
Default Egress Queue Configuration
Feature
Queue 1
Queue 2
Queue 3
Queue 4
Buffer allocation
25 percent
25 percent
25 percent
25 percent
WTD drop threshold 1
100 percent
200 percent
100 percent
100 percent
WTD drop threshold 2
100 percent
200 percent
100 percent
100 percent
Reserved threshold
50 percent
50 percent
50 percent
50 percent
Maximum threshold
400 percent
400 percent
400 percent
400 percent
SRR shaped weights
(absolute)
(absolute)
1
1. A shaped weight of zero means that this queue is operating in shared mode.
25
0
0
0
SRR shared weights
2
2. One quarter of the bandwidth is allocated to each queue.
25
25
25
25
Table 39-10
Default CoS Output Queue Threshold Map
CoS Value
Queue ID–Threshold ID
0, 1
2–1
2, 3
3–1
4
4–1
5
1–1
6, 7
4–1
Table 39-11
Default DSCP Output Queue Threshold Map
DSCP Value
Queue ID
–Threshold ID
0–15
2–1
16–31
3–1
32–39
4–1
40–47
1–1
48–63
4–1